A series of experimental tests of large-scale lightly reinforced concrete walls were conducted at the University of Auckland. The test were used to investigate minimum vertical reinforcement provisions and formed the basis for revisions to the New Zealand Concrete Structures Standard (NZS 3101:2006 (A3)) and the US Building Code Requirements for Structural Concrete (ACI 318-19). This dataset summarizes the results from the 11 tested walls including all sensor data (load cell, LVDT, string-pot displacement gauge, displacement transducer and strain gauge). Detailed instrumentation plan, loading protocol, test sequences, test observations and photos that were taken throughout the testing are also provided. The dataset is intended to serve as a reference for future work, as well as an open resource to be used in future research.